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TTK 73 E – comfort dehumidifier
Home Comfort
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  2. Products ‑ HomeComfort
  3. Dehumidification
  4. Condensation dehumidifier of the TTK-series
  5. TTK 73 E

Comfort dehumidifier TTK 73 E

Design dehumidifier with metallic effect finish for dehumidification and dry keeping – with swing function and humidity level indication

Protects against mould formation and moisture in living spaces

There's no place like home. Provided that the indoor climate is not impaired by an excessive humidity level and associated moisture problems such as mould, mildew stains or dampness. The design dehumidifier TTK 73 E helps you to avoid such risks. The combination of a metallic effect finish and pure white device appearance makes the design device an absolute eye-catcher. The shiny bluish metallic effect varies depending on the incidence of light and viewing angle. Moisture problems occur anywhere in the house or flat where it is damp or cold. This is where mould and mites grow. The mobile dehumidifier TTK 73 E eliminates harmful moisture before it becomes a problem, and thus creates a permanently healthy room climate.

The dehumidifier TTK 73 E dries and dehumidifies:

  • living rooms and guest rooms
  • bedrooms, bathrooms and laundry rooms
  • unheated basements, conservatories and garages
  • archives, laboratories
  • storage spaces, offices and holiday homes
  • yoga rooms, fitness/sports/changing rooms
  • sauna, wellness and spa areas

A hygrostat-controlled automatic dehumidification function with target values ranging from 30 % to 80 % relative humidity, digital humidity sensors and three fan stages guarantee reliable dehumidification. In automatic operation mode, the dehumidifier keeps the humidity in the optimum range depending on the current room temperature. An on-demand swing function additionally increases the air circulation in the room – without audibly producing any wind. Thanks to the low noise emission of only 43 dB(A), the TTK 73 E dehumidifies and dries as quiet as a whisper even at the highest fan stage. These are optimum conditions to promote your sleep in the bedroom or create an undisturbed working atmosphere in the office.

Healthy living and working with the right humidity level

An optimally regulated room humidity of about 40 to 60 % prevents the formation of unhealthy mould cultures and moisture accumulations. In addition, the growth of dust mites and allergens is reduced. Another advantage for the room climate: unsightly suspended particles such as dust and animal hair are reliably removed from the room air by the integrated air filter. The large 3.5-litre water collection container and an impressive dehumidification performance of up to 24 l/24 h offer sufficient capacity for dehumidifying rooms sized up to 50 m² or 125 m³. For unattended continuous operation, the device is equipped with a hose connection at the rear to conveniently discharge the condensate extracted from the air via a hose.

Product brochure Practical guide to air dehumidification


Moisture in the bathroom, basement or bedroom can lead to mold. All relevant information about our comfort dehumidifiers can also be found in the product brochure. Download the PDF directly here.

To the PDF document

Auto restart function

Auto restart function

In case of an unexpected switch-off due to a power interruption, the auto restart function (or “Memory function”) makes the device restart with the previously selected setting as soon as the power supply has been restored. This makes the dehumidifier also suitable for combined use with a timer.

Gentle laundry drying with dehumidifiers

Apart from ambient air dehumidification, a dehumidifier can be conveniently used for drying laundry – either in an assisting way or as a full replacement for a conventional dryer. The laundry drying function (also referred to as clothes drying mode or SuperDry function) is comparable to traditional air drying outside.

Dehumidifiers offer the benefit of drying the laundry as gently as in the nature outside. Colours retain their brilliance and the life span of clothes is longer than with conventional dryers – and all this with a substantially lower power consumption.

Furthermore, even sensitive materials such as wool, silk or synthetic fibres can be dried without any problems. In contrast to pure air drying, the laundry feels much softer and more pleasant on your skin.

Laundry drying can also be performed with dehumidifiers without an additional laundry drying function. The target value of the air humidity must then be set in accordance with the desired residual humidity:

Cupboard dry: 46 % of relative air humidity

Iron dry: 58 % of relative air humidity

Skin dry: 65 % of relative air humidity

Laundry-drying function
Environmentally friendly refrigerant R290

Propane (R290) as environmentally friendly refrigerant in dehumidifiers

Every year, several million tonnes of environmentally harmful CO2emissions (greenhouse gases) are emitted into the air by synthetic refrigerants. For this reason, the utilization of alternative refrigerants has become one of our key objectives. By using propane (R290) as refrigerant, this dehumidifier makes a valuable contribution to protecting our climate.

The natural refrigerant propane (R290) is an organic compound belonging to the group of hydrocarbons. Unlike synthetic refrigerants the environmentally friendly propane (R290) comes with neither ozone depletion potential (ODP = 0) nor a noteworthy greenhouse effect (GWP = 3).

Additional bonus for the environment: Owing to its excellent thermodynamic properties, propane (R290) is a particularly energy-efficient refrigerant thereby additionally reducing your energy costs.

Extensive features for optimum humidity

Four operating modes, three fan stages and a variety of comfort functions make the dehumidifier TTK 73 E a universal drying unit for a wide range of different applications.

Automatic operation: With its practical automatic mode, the TTK 73 E detects whether the room humidity level is in the optimum range or too high. In automatic mode, the air humidity is measured continuously depending on the current room temperature. The device adjusts the dehumidification intensity fully automatically in this operating mode and always keeps the humidity level within the ideal range to provide for optimum room air.

Continuous operation: Condensation of water on walls is one of the most common causes of moisture damage. For instance because water penetrates the basement from outside through an insufficiently insulated wall. Or because the ventilation condition is not sufficient to lead harmful humidity to the outside. The TTK 73 E is equipped with a continuous operation modefor keeping such environments permanently dry. If this programme is selected, the room air is permanently dehumidified at maximum power.

Night mode: Stuffy nights in summer can deprive you of sleep. In addition to the moisture emitted by breathing, sweating also increases the humidity to an unhealthy level. In night mode, the TTK 73 E regulates the humidity to an optimum value at the lowest fan stage. For a good night's sleep to recharge your batteries.

Laundry drying function: For air drying your laundry in a gentle way, we recommend the laundry drying mode. The laundry drying function (also referred to as clothes drying mode or SuperDry function) is comparable to traditional air drying outside. Dehumidifiers offer the benefit of drying the laundry as gently as in the nature outside.

Energy-efficient operation – optimally planned

There are many good reasons to switch the TTK 73 E on or off after a preset number of hours. In the bedroom, dehumidification is useful during the night – there is no need for the device to run at daytime though. Similarly, dehumidification in the office or at the workplace is only required during working hours. For these and other applications, the TTK 73 E is equipped with a programmable 24-hour timer. This allows you to preset the number of operating hours until automatic switch-on or switch-off in increments of 1 hour.

The visually appealing design dehumidifier TTK 73 E regulates the room humidity to a healthy level and protects against mould growth and moisture damage.

TTK 73 E – special equipment features

TTK 73 E – control panel
The control panel of the TTK 73 E is provided with a clear design and is easy to understand. The digital display shows you the current value of the relative humidity in the room, the preselected humidity value and the set number of hours of the timer.
TTK 73 E - swing function
The swing function can be switched on if desired. The air outlet flap is automatically raised and lowered so that the air current distributes evenly in the room.
TTK 73 E – filter
The easily removable air filter retains lint and animal hair and can be quickly and easily replaced, wiped or washed out.
TTK 73 E – water tank
The removable water tank has a storage capacity of 3.5 litres. The device stops automatically when the tank is full and indicates this via LED. In order to continuously drain the condensation water, a pipe can be connected on the rear of the device.
TTK 73 E – perfect for storing, easy transport
For keeping perfect order when storing the device, the cable can be wound up at the back and fastened in the "connector storage space". Thanks to the practical easy-running wheels and recessed grip, you can easily transport the TTK 73 E to any place where it is needed.
TTK 73 E – automatic mode
The automatic mode provides for a perfect feel-good ambience as current room temperature and air humidity are adjusted automatically. Depending on the temperature prevailing in the respective room, the air humidity is automatically regulated to a particularly pleasant humidity value. With hygrostat-controlled dehumidification, the compressor switches off automatically as soon as the target value (30 – 80 %) is reached. When the value is exceeded, the device is automatically activated.
TTK 73 E timer function
Use the practical timer function to switch the device on or off after a defined number of hours. The time can be programmed in increments of 1 hour (1 to 24 h). The use of the timer prevents unnecessary operating periods and allows you to adapt the dehumidification to your individual rhythm of life.
TTK 73 E – laundry drying function
The TTK 73 E may also be used as a room air laundry dryer to dry wet laundry in living spaces or utility rooms. In this way, you speed up the drying process of the clothes and prevent the humidity contained on the clothes from condensing in the room and from becoming a hotbed for mould.
TTK 73 E – permanent mode
In the permanent mode, the TTK 73 E dehumidifies the room air in continuous operation. This is especially suitable for cellar or storage spaces which are subjected to mould formation by excess humidity. To avoid that you constantly have to drain the water tank, a condensate drain hose can be connected.

TTK 73 E – in the bathroom
In order to prevent the formation of unwelcome mould that is dangerous to your health in bathrooms, hobby rooms or on cool corners and walls exposed to dampness in the first place, we recommend to use a dehumidifier continuously in due time.
TTK 73 E – in the living room
Whether you use it at home, in the office or in the bedroom – the dehumidifier TTK 73 E is a very compact and light device in its performance class. The easily accessible air filter is easy to clean and filters animal hair, fluff, lint, dust as well as preventing bacterial growth.
Technical data by comparison

All TTK dehumidifiers in direct comparison:

To find the dehumidifier which exactly meets your requirements, please consult the concise overview of all TTK dehumidifiers from Trotec, which we're providing to you here so that you can compare them directly to each other.

Models which you do not wish to include in your comparison can be easily dismissed with only one click.

Technical data by comparison

A few practical benefits:

  • Condensation dehumidifier
  • Hygrostat-controlled automatic dehumidification system with target value preselection between 30 and 80 % RH in steps of 10 %
  • When the desired humidity level is reached, the compressor switches off automatically. The fan keeps running. When the value is exceeded, the device is automatically activated.
  • Automatic mode
  • Continuous operation mode
  • Indication of the relative humidity level
  • Auto restart function (Memory function)
  • Laundry-drying function
  • Timer function
  • 3 fan stages
  • Swing function for even air distribution
  • Automatic air circulation defrost system
  • Connection for external condensate drain
Room size suitability of the TTK 73 E

Which device to use for which room size?

Here you find a specific performance chart for the suitability of each comfort dehumidifier. It indicates the room size in combination with an area and volume scale.
Click to enlarge in a new window ...

Product finder for dehumidifiers

We help you find the suitable dehumidifier that meets your requirements!

With our product finder you can quickly and easily choose the ideal dehumidifier for your application scenario.
Click here to go directly to the product finder

Socket hygrostat BH30 with dehumidifier TTK 73 E

Save electricity and money on dehumidification

With our socket hygrostat BH30 you can additionally save money when dehumidifying damp rooms or keeping rooms dry. The programmable switch is simply plugged in between the dehumidifier and socket to regulate the dehumidification process based on the measured humidity level.

Once the desired target humidity is reached, the hygrostat disconnects the device from the mains until dehumidification is required again. By switching off the compressor and fan during standby times, the device's energy consumption is noticeably reduced.

The initial acquisition costs of the BH30 will have been amortized in a minimum of time.

Moreover, many dehumidifiers only offer rough target value setting for optimum humidity. The hygrostat BH30 allows the room humidity level to be adjusted in increments of 1 % from 20 % to 90 % and thus offers significantly more precise target humidity selection.

Thermohygrometer BZ05 and design weather station BZ06

Our recommendation for climate control:

The room thermohygrometer BZ05
Simultaneous display of room temperature, humidity level and time or date as well as an additional feel-good indication.

The design weather station BZ06
Simultaneous indication of room temperature, humidity level, date, time, weekday and symbolic weather forecast. Supplies helpful information for preventing mould growth.

Adsorption, condensation or Peltier dehumidifier?

Trotec, your dehumidification expert, has compiled the most important facts in a reader-friendly overview!

Direct link to “Practical knowledge of dehumidifiers” …


Technical data

Technical data
General information
  Article number
Dehumidification performance
  At 30 °C / 80 % RH [l/24h] 20
  Max. [l/24h] 24
Air flow rate
  Level Max. [m³/h] 130
Recommended room size construction drying
Recommended room size dry keeping
Ambient conditions
  Min. temperature range [°C] 5
  Max. temperature range [°C] 32
  Min. humidity range [% r.F.] 30
  Max. humidity range [% r.F.] 90
Electrical values
  Mains connection 220 - 240 V, 50 Hz
  Nominal current consumption [A] 2
  Power input [kW] 0.45
  Recommended fusing [A] 10
  Required current starting phase [A]
Electric connection
  Connection plug CEE 7/7
  Cable length [m] 1.8
  Rotary piston compressor
  Reciprocating piston compressor
  Minimum room size [m²] 4
  refrigerant R290
  Amount of refrigerant [g] 110
  GWP factor 3
  CO2 equivalent 0.00033 t
  Pressure suction side [MPa] 1.5
  Pressure outlet side [MPa] 3
Water tank
  Contents in [l] 3.5
Sound values
  Distance 1 m [dB(A)] 43
  Length (packaging excluded) [mm] 220
  Width (packaging excluded) [mm] 365
  Height (packaging excluded) [mm] 590
  (packaging excluded) [kg] 15.5
Equipment, features and functions
Automatic defrost system
  Air circulation / electronic
  Hot gas
Automatic dehumidification
  stages 3
Condensate tank monitoring
  Container available
  Overflow protection with automatic switch-off
Room air filter
  Readily accessible
  Pre-filter Synthetic fibre
Timer function
  Switch-off time can be preselected
  Switch-on time preselectable
Functions and features
  Automatic operation
  Continuous operation
  Laundry drying function
  Operating control lamp
  Indication of the current room humidity level
  Anzeige der eingestellten Luftfeuchtigkeit
  Automatic fault diagnosis system
  Memory function
  Auto restart function
  Child lock
  Night mode
  Plastic wheels
  Recessed handles
Condensate drain
  Hose connection possible
  Recommended hose size [mm] 14
  Hose included in the scope of delivery
  Condensate pump
Control panel
  LED display
Shelf life
Adjustable air discharge direction
  Swing function
Housing design

 standard equipment

 optionally available

 not available



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